CO2 and RH/T Sensor Module

For HVAC and Air Quality Applications

CMOSens® Technology for IR detection enables highly accurate carbon dioxide measurement at a competitive price. Along with NDIR measurement technology for CO2 detection, a best-in-class Sensirion humidity and temperature sensor is also integrated on the same sensor module. Ambient humidity and temperature can be outputted by Sensirion's algorithm expertise through modelling and compensation of external heat sources without the requirement of any additional components.

Product Highlight

Liquid Flow Sensor for Biomedical Applications

The single-use liquid flow sensor LD20 enables fast, precise and reliable measurement of the lowest flow rates. The new flow sensor series is based on a successful design study that was first presented in 2014 and has already received several international awards. Product development of the LD20-2600B, the first representative of the new single-use sensor series, is now complete and it is ready for high-volume production. The intelligent, compact and cost-effective sensor is suitable for a wide range of biomedical applications in the field of critical and home care.

Our Markets

Experts for Smart Sensor Solutions

Sensirion's sensors are used in a wide range of markets and different applications. Our high-quality environmental and flow sensors and sensor solutions improve energy efficiency and sustainability. They increase our safety, support our health and raise the quality of life.

Sensirion – The Sensor Company

Sensirion Worldwide

Founded in 1998 Sensirion has become the leading manufacturer of flow and environmental sensors solutions. The company now employs people in various countries such as the USA, South Korea, Japan, China, Taiwan, and Germany. The headquarters in Switzerland is responsible for research, development, and production.

"It's great that we were able to develop the world's smallest humidity sensor."

Process Engineer Packaging

Susanne Koeppl

Susanne Koeppl works as a process engineer in packaging at Sensirion. She came into contact with the company back when she was doing her doctorate at ETH Zurich: “Various events made me increasingly aware of Sensirion,” she says. “What really excited me was the chance not only to use my own knowledge, but to learn a lot of new things as well.”

As a packaging process engineer, Susanne is responsible for process control in current operations as well as the development of new processes. For the latter, she focuses on the best possible packaging for the sensor chip: How can a chip be packed in a way that protects it effectively and still allows it to communicate with the outside world? “The individual packaging processes are very complex. That's why we have one or two experts for each process,” explains Susanne, who is responsible for the wire bonding and plasma cleaning processes. Together with the R&D packaging project manager, the process engineers develop a project flow that defines the sequence of the individual packaging processes. After that, the specifications are defined and the processes are developed step-by-step.

For Susanne, this means setting up, executing and analyzing the results of testing – always with the goal in mind of defining a process window in which a process required for producing a sensor package functions as desired.

One of the best things about Sensirion: It never gets boring because there are always new challenges.

To date, Susanne has been responsible for the plasma cleaning and wire bonding processes for our humidity and temperature sensors. Soon though, the development process for a completely new sensor will begin – and this is a task that she is already looking forward to.